fistulotomy

A fistulotomy is a surgical procedure used to treat anal fistulas. A fistula is an abnormal passageway that can form between organs or between an organ and the skin surface. Anal fistulas specifically connect the anus to the skin surface, often with a passage that curves around the rectum.1

During a fistulotomy, the surgeon opens the fistula's passageway and combines it with the anal canal. This procedure is one method of surgical repair for fistulas, which may also be caused by wounds, congenital disorders, abscesses, infection, or surgery. While some fistulas may close on their own, others, particularly those involving the anus, typically require surgical intervention.1